About this item: ✬100% Nylon - Nylon rope is known for its elasticity and ability to absorb tremendous shock loads.This rope will not rot and is resistant to oil, gasoline and most chemicals.Along with having good abrasion resistance, nylon rope also has a good resistance to UV rays. ✬This Multipurpose, strong, easy to knot Rope is Ideal for Indoor and Outdoor Applications ✬About the sheath : we can accord your need to production 12 strands and 16 strands,32 strands or 48 strands .